compiler/include/graphics/clip.h

   1 #ifndef GRAPHICS_CLIP_H
   2 #define GRAPHICS_CLIP_H
   3
   4 /*
   5     Copyright © 1995-2017, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8     Desc: Clip descriptions.
   9     Lang: english
  10 */
  11
  12 #ifndef EXEC_SEMAPHORES_H
  13 #   include <exec/semaphores.h>
  14 #endif
  15 #ifndef EXEC_TYPES_H
  16 #   include <exec/types.h>
  17 #endif
  18 #ifndef GRAPHICS_GFX_H
  19 #   include <graphics/gfx.h>
  20 #endif
  21 #ifndef INTUITION_INTUITION_H
  22 #   include <intuition/intuition.h>
  23 #endif
  24
  25 #ifndef UTILITY_HOOKS_H
  26 #   include <utility/hooks.h>
  27 #endif
  28
  29 #define NEWLOCKS
  30
  31
  32 struct Layer
  33 {
  34     struct Layer            * front;
  35     struct Layer            * back;
  36     struct ClipRect         * ClipRect;
  37     struct RastPort         * rp;
  38     struct Rectangle          bounds;
  39
  40 #if 1
  41     struct Layer            * parent;                   /* PRIVATE !!! */
  42 #else
  43     UBYTE                     reserved[4];
  44 #endif
  45     UWORD                     priority;
  46     UWORD                     Flags;
  47
  48     struct BitMap           * SuperBitMap;
  49     struct ClipRect         * SuperClipRect;
  50
  51     APTR                      Window;
  52     WORD                      Scroll_X;
  53     WORD                      Scroll_Y;
  54
  55     struct ClipRect         * cr;
  56     struct ClipRect         * cr2;
  57     struct ClipRect         * crnew;
  58     struct ClipRect         * SuperSaveClipRects;
  59     struct ClipRect         * _cliprects;
  60
  61     struct Layer_Info       * LayerInfo;
  62     struct SignalSemaphore    Lock;
  63     struct Hook             * BackFill;
  64
  65 #if 1
  66     struct Region           * VisibleRegion;            /* PRIVATE !!! */
  67 #else
  68     ULONG                     reserved1;
  69 #endif
  70
  71     struct Region           * ClipRegion;
  72     struct Region           * saveClipRects;
  73
  74     WORD                      Width;
  75     WORD                      Height;
  76
  77 #if 1
  78     struct Region           * shape;                    /* PRIVATE !!! */
  79     struct Region           * shaperegion;              /* PRIVATE !!! */
  80     struct Region           * visibleshape;             /* PRIVATE !!! */
  81
  82     UWORD                     nesting;                  /* PRIVATE !!! */
  83     UBYTE                     SuperSaveClipRectCounter; /* PRIVATE !!! */
  84     UBYTE                     visible;                  /* PRIVATE !!! */
  85
  86     UBYTE                     reserved2[2];
  87 #else
  88     UBYTE                     reserved2[18];
  89 #endif
  90
  91     struct Region           * DamageList;
  92 };
  93
  94 #define MAXSUPERSAVECLIPRECTS   20      /* Max. number of cliprects that are kept preallocated in the list */
  95
  96 struct ClipRect
  97 {
  98     struct ClipRect         * Next;
  99     struct ClipRect         * prev;
 100     struct Layer            * lobs;
 101     struct BitMap           * BitMap;
 102     struct Rectangle          bounds;
 103
 104     void                    * _p1;
 105     void                    * _p2;
 106     LONG                      reserved;
 107     LONG                      Flags;
 108 };
 109
 110 /* PRIVATE */
 111 #define CR_NEEDS_NO_CONCEALED_RASTERS 1
 112 #define CR_NEEDS_NO_LAYERBLIT_DAMAGE  2
 113
 114 #define ISLESSX (1<<0)
 115 #define ISLESSY (1<<1)
 116 #define ISGRTRX (1<<2)
 117 #define ISGRTRY (1<<3)
 118
 119 /* This one is used for determining optimal offset for blitting into
 120 cliprects */
 121 #define ALIGN_CLIPRECT  16
 122 #define ALIGN_OFFSET(x) ((x) & (ALIGN_CLIPRECT-1))
 123
 124
 125 /*
 126  * Tags for scale layer
 127  */
 128 #define LA_SRCX       0x4000
 129 #define LA_SRCY       0x4001
 130 #define LA_DESTX      0x4002
 131 #define LA_DESTY      0x4003
 132 #define LA_SRCWIDTH   0x4004
 133 #define LA_SRCHEIGHT  0x4005
 134 #define LA_DESTWIDTH  0x4006
 135 #define LA_DESTHEIGHT 0x4007
 136
 137 #define IS_VISIBLE(l) (TRUE == l->visible)
 138
 139 struct ChangeLayerShapeMsg
 140 {
 141   struct Region   * newshape; // same as passed to ChangeLayerShape()
 142   struct ClipRect * cliprect;
 143   struct Region   * shape;
 144 };
 145
 146 struct CollectPixelsLayerMsg
 147 {
 148   LONG   xSrc;
 149   LONG   ySrc;
 150   LONG   width;
 151   LONG   height;
 152   LONG   xDest;
 153   LONG   yDest;
 154   struct BitMap * bm;
 155   struct Layer *  layer;
 156   ULONG  minterm;
 157 };
 158
 159 /*
 160    AmigaOS4-style shape hook.
 161
 162    Msg sent through LA_ShapeHook. Hook function must look like this:
 163
 164     AROS_UFH3(BOOL, MyShapeFunc,
 165         AROS_UFHA(struct Hook *, hook, A0),
 166         AROS_UFHA(struct Layer *, layer, A2),
 167         AROS_UFHA(struct ShapeHookMsg *, msg, A1))
 168
 169 */
 170
 171 #define SHAPEHOOKACTION_CREATELAYER      0
 172 #define SHAPEHOOKACTION_MOVELAYER        1
 173 #define SHAPEHOOKACTION_SIZELAYER        2
 174 #define SHAPEHOOKACTION_MOVESIZELAYER    3
 175 #define SHAPEHOOKACTION_CHANGELAYERSHAPE 4
 176
 177 struct ShapeHookMsg
 178 {
 179     LONG             Action;
 180     struct Region    *NewShape;
 181     struct Region    *OldShape;
 182     struct Rectangle *NewBounds;
 183     struct Rectangle *OldBounds;
 184 };
 185
 186 #endif /* GRAPHICS_CLIP_H */